Rage Walkthrough and Strategy Wiki SuperGuide

Waster Territory Collector Cards

In the mission Radio Tower Repair/Find Juno, you enter the Waster Territory. Go up the stairs following hte waypoint and, when you see the very first enemies, kill them and look for a dark stairway leading to a secret area with the Turret Card. This is just before the area with the "bathroom."

Collector Card: Rikter

In the radio tower you activate in Radio Tower Repair, at the bottom of the ladder leading to the tower control room, there's a shelf with the Rikter Card on it.